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M8 red color rendition in Lightroom is wrong - Here are parameters to correct it


lovelyleica

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Please bear with me for a couple of posts. The first image is a selection of presets for LR. I have taken the same image, shot at ISO 160 at 1/250 using the SF-24d flash and just changing the presets and nothing else created a series of JPGs. I would like the experts on the forum to indicate which preset they think produced the best rendering. The very first image is the LR default with no presets. The wall in the background should be beige but rarely winds up being that color. The cabinets and woodwork are a dark brown like mahogany or dark cherry.

 

Looking at the crops (which to me look different color wise than the regular images), my #1 pick...C1 v4 like. And #2, the one right after it.

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The crops are the same color presets as the full image. I too like the C1 V4 like preset but interestingly enough when I actually created a C1 V4 crop it doesn't look like the C1 V4 image itself. Of course I don't know if he was using the generic M8 settings or some other profile. Tomorrow I will try another image and focus on a smaller set of presets. Sometimes you just go with good enough. We may be more picky than we need to be as the eye and mind are easily fooled on color as Dr. Land once proved.

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I think that most of the presets are created by folks here.

 

On the topic of C1 V4, one thing that my continuing quest (!) to sort out calibration has shown is that by default, LR has a significantly different tone curve to C1's "Film Standard" setting - to compare a C1 image to an LR image, you really have to move the LR brightness preset down to about 36 from its default 50. It makes quite a difference to how you see the images....

 

Sandy

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If enough of us experiment around we should be able to find the right preset for various conditions. I wish there was a simple way to send C1 v4 directly to LR or conversely C1 V4 had the means to export for email, web, and to print directly. I find it a real pain to have to process the image then bring it into LR to do these functions that LR does so easily. Alternatively, maybe someone could provide a means to select the C1 v4 instead of the ACR plug in as the default converter and then let me use the other features of LR that are better and easier to use.

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Very interinting posts in comparing results of different presets.

 

To give some precisions, the preset "M8 C1 v4 like" is not made specially to solve skin tone or other colors issue. It has been done by comparing the same image in C1 (without default params) and in LR. I then adjusted LR params to get the same "appearance" as C1.

 

The main problem with Lightroom and M8 Raw file comes from calibration. C1 on this aspect is better calibrated, which is normal as it is the leica provided solution for M8 Raw development. I can guess they could work together to get the right profile, with and without IR. To get good results with LR I calibrate my work with GretagMcBeth colorchecker. Here is the result of the calibration of a raw picture taken in Plain Sunshine with IR filter (In the middle of each patch is shown the corrected value with Red -4/+20, Green -8/+6, Blue +6/+19). You remark the problem with the red which is too "light".

 

image-3.png

 

I start each picture development by applying the Camera Calibration correction corresponding to the shoot (sunny, cloudy, indoor flash, ...). Then I tweak the other LR dev parameters to get the desired results. I remark now that there is not 1 miraculous preset that could be the solution to every photos. Each picture you take needs it's own and peculiar Raw file treatment.

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